For young women in high school, the risk of childbearing may depend on the prevalence of obesity in their schools, according to sociologists, who found that as the prevalence of obesity rises in a school, so do the odds of obese high school students bearing children.

Increasing racial and ethnic diversity has long been apparent at the national level and in our nation's largest metropolitan gateways. Since 1980 over nine-tenths of all cities, suburbs and small towns have become more diverse. And rural communities are following the lead of their urban counterparts, according to a U.S. 2010 policy brief.